Odpowiedzi

2009-10-02T16:19:03+02:00
1/3x+2=x /-1/3x
2=2/3x /:2/3
x=3

-7(2x+1)=4
-14x-7=4 /+7
-14x=11 /:-14
x=-11/14

3-x/2+x+2/2=1/2 /*2
6-x+2x+2=1 /-8
x=-7

1/4x - x-1/4=1/4 /*4
x-4x-1=1 /+1
-3x=2 /:-3
x=-2/3

Najlepsza Odpowiedź!
2009-10-02T17:18:33+02:00
⅓x+2=x
⅓x-x=-2
-⅔x=-2 /*(-3/2)
x=3

-7(2x + 1)=4
-14x-7=4
-14x=11 /:(14)
x= -11/14


1/4x - x-1/4=1/4
-0,75x=1/2
x= -1/15